Electron shell configurations of the elements
Position in the periodic table based on electron shell configuration. This image shows the entire periodic table, with diagrammatic atoms and electron shells filling with movement through the table. This image breaks out the electron configuration numerically, showing the population of electrons in each subshell, starting each period with a completely filled noble gas.
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"Periodic table (electron configurations)."
https://en.wikipedia.org/wiki/Periodic_table_(electron_configurations)
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